Fire-door.



J. BOGENBERGER.

FIRE DOOR.

APPLICATION FILED MARAD. 1915.

1 ,203,965. patented Nov. 7, 1916.

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IOHIYI'v BOGENBERGER, 0F MILWAUKEE, WISCONSIN.

Finn-Doon.

Specification of Letters Patent.

Patented N ov. 7, 1916.

Application filed March 1o, 1915. serial No. 13,343;

To all whom t may concer/n Be it known that I, JOHN BOGENBERGER, a citizen of the United States, residing at the city of Milwaukee, county ofMilwaukee, and State of lVisconsin, have invented new and useful Improvements in Fire-Doors, of which the followingis a specification.

My invention relates to improvements in that class of ire doors which are adapted to be simultaneously unlocked at its side and ends by a rearward pressure upon a handle or bar, which is connected with the locking mechanism of such door, and it pertains more especially to the construction of the door locking mechanism by which such handle and door are connected with a pair of vertically moving fastening bolts or bars of such locking mechanism.

My invention is explained by reference to the accompanying drawings, in which- Figure 1 represents a front view of a door provided with my fastening mechanism. Fig. 2 is an enlarged detail of the locking mechanism showing a vertical section of a door, and Fig. 8 is a front view of a portion of the locking mechanism removed from the door.V

Like parts are referred to by the same reference numerals throughout the several views.

1 represents a door, and 2 is the door frame, both of which are substantially of ordinary construction. The door frame is provided with a pair of sockets 3, one located at its upper and one at its lower end for the reception of the respective vertically moving locking bars 4 and 5. The locking bars 4 and 5 are slidably supported from the door in the ordinary manner, and their respective inner ends are connected with the rack bars 6 and 7, and motion is communicated from the rack bar 6 to the rack bar 7 through the pinion 8, which pinion is revolubly supported at one side from the door 1 and at its opposite side from the bracket 9 on the pivotal bolt 10.

11 is an operating handle or bar by which the door is opened by a rearward push thereon, and the handle 11 is connected with the vertically moving bolt 5 through the arm 12,`arm 13, elongated slot 14 and pivotal bolt 15, whereby as the handle 1 1 is pushed rearwardly said locking bolt 5 is raised, whereby the rack bar 6 which is connected with said bolt 5 is also raised when motion is communicated from said rack bar 6 to said pinion 8 and from said pinion to said rack bar 7, whereby as the bolt 5 is raised the bolt 4 will be moved downwardly and whereby both of said bolts 4 and 5 will be disengaged from the sockets 3, 3 of the door inclosing frame. It will now be understood that a rearward movement, such as is normally applied to the handle 11, will disengage both of said fastening bolts as the door is thrown open, while by a reverse movement of said door both of said locking bolts will be brought into engagement with the sockets of said door inclosing frame. The door 1 is preferably provided with an additional handle 16 by which it is drawn to its closed position. In view of the fact that the weight of the handle l1 might under normal conditions be heavy enough to raise the bolt 5 and lower the bolt 4 and thereby unlock the door, the bolt 4 is preferably made of tubing, while the bolt 5 is made of solid iron whereby the gravity of said bolt 5 will counteract the gravity of the handle 11, and thus retain said locking bolts in their closed position. One end of said locking bar l1 is connected with the arm 12 by the bolt 17, while the opposite end of said arm or handle l1 is connected with the opposite side of said door by the bracket 18, bolt 19 and arm 20. The bracket 9, not only serves as a support for the inner end of the bolt 10 but it alsoV serves as a guide for the two opposing ends of the fastening bolts 4 and 5.

21 is a latch which is adapted to engage in a recess 22 located at the side of the door as the vertically moving bolts 4 and 5 are caused to engage in the sockets 3 at the upper and lower ends of the door, whereby said door may be simultaneously locked at both its upper and lower ends and at its side. The latch 21 is rigidly connected with the side of theninion S and adapted to revolve with it, whereby as said pinion is revolved in the act of throwing said bolts 4 and 5 into and out of engagement with the sockets 3 said member 21 is thrown into and out of engagement with the recess 22.

Having thus described my invention what I claim as new and desire to secure by Letters Patent, is:-

In a device of the described class, the combination with a door, of a pair of fastening bolts, the upper of said bolts being formed of tubing and the lower of solid metal, the lower of said bolts being heavief` than the upper, whereby owing to the greater Weight of the solid bolt it is ada-pted to move downwardly and throw the other bolt upwardly, a pair o rack bars connected with the inner ends of both of said bolts, a pinion revolubly supported in mesh with the teeth of said rack bars, an operating handle, an arm provided with an elongated slot for connecting said door with the upper of said fastening bolts, two additional arms -lor connecting said operating handle at its respective ends with said door, one of said handle supporting arms being oonneeted with said slotted arm, and the other pivotally connected directly to said door, whereby as said handle is moved doWn- Wardly both of said bolts Will besimnltaneously moved outwardly and brought into their looking position as soon as the door is closed, substantially as andV for the purpose speeied.

Y In testimony whereof I ailiX my signature in the presence of two Witnesses.

JOHN BOGENBERGER.

lVitnesses 2 JAS. B. ERWIN, Amon J. MCKERIHAN.

Copies of this patent may be obtained for ve cents each, by. addressing the Commissioner of Patents, Washington, D. C. 

